Problems

	Submissions				Users
Name	Total	Acc.	Ratio	Fastest	Total	Acc.	Ratio	Difficulty
0-1 Sequences	10007	1504	15%	0.00	1984	1028	52%	5.7
10 Kinds of People	23336	4772	20%	0.01	4015	2916	73%	4.2
2048	9488	4369	46%	0.00	4189	3595	86%	2.3
2, 4, 6, Greaaat	556	89	16%	0.15	55	30	55%	9.0
3D Printed Statues	12157	5612	46%	0.00	5207	4672	90%	1.9
3D Printer	879	149	17%	0.00	361	113	31%	8.8
3-Sided Dice	2665	218	8%	0.00	434	155	36%	8.6
4 thought	10613	3608	34%	0.00	3508	2960	84%	2.3
A1 Paper	6049	1820	30%	0.00	1791	1427	80%	3.6
Aaah!	31913	14833	46%	0.00	13265	12384	93%	1.5
Abandoned Animal	2218	479	22%	0.03	557	404	73%	5.2
ABC	16337	7444	46%	0.00	7018	6363	91%	2.0
Ab Initio	1400	243	17%	0.09	205	120	59%	7.8
Above Average	10888	4471	41%	0.00	4303	3855	90%	2.1
A+B Problem	8769	863	10%	0.03	1229	411	33%	8.3
A Brief Gerrymander	502	102	20%	0.12	91	44	48%	8.8
Abstract Art	393	127	32%	0.00	105	81	77%	5.4
Abstract Painting	535	220	41%	0.00	187	149	80%	4.5
Absurdistan Roads II	669	228	34%	0.00	224	150	67%	6.9
Absurdistan Roads III	1641	472	29%	0.02	445	338	76%	5.6
Access Points	450	157	35%	0.01	149	115	77%	5.9
Accounting	648	258	40%	0.02	186	147	79%	4.1
A Classy Problem	11140	2884	26%	0.01	2502	1934	77%	4.2
ACM Contest Scoring	7618	4765	63%	0.00	4257	4019	94%	1.5
Add 'Em Up!	1521	399	26%	0.01	403	300	74%	4.4
Adding Words	12357	3038	25%	0.00	2899	2273	78%	3.4
A Different List Game	7331	510	7%	0.00	946	184	19%	9.2
A Different Problem	35975	13245	37%	0.00	12146	10531	87%	2.3
Adjoin the Networks	2306	608	26%	0.00	512	407	79%	5.7
Administrative Difficulties	1519	304	20%	0.03	329	226	69%	6.2
Ads	776	69	9%	0.00	130	46	35%	5.9
Advanced Causal Measurements	124	39	31%	0.10	37	30	81%	6.6
Adventure Begins	301	94	31%	0.06	100	75	75%	5.4
Adventures in Moving -- Part IV	1614	362	22%	0.00	309	262	85%	4.5
A Favourable Ending	1822	487	27%	0.00	456	354	78%	4.5
A Feast For Cats	2946	1114	38%	0.00	789	675	86%	3.8
A Flea on a Chessboard	843	169	20%	0.01	176	122	69%	5.4
A Horse Shoe-In	85	8	9%	0.45	13	7	54%	8.2
AI Jeopardy	460	52	11%	0.02	56	39	70%	7.0
Air Conditioned Minions	5995	1733	29%	0.00	1800	1375	76%	4.0
Airline Hub	2247	498	22%	0.01	435	260	60%	6.6
Airport Coffee	966	207	21%	0.08	197	140	71%	6.9
Airport Construction	3571	455	13%	0.02	385	205	53%	7.7
Airport Logistics	67	15	22%	0.00	22	15	68%	7.4
Airports	491	151	31%	0.11	132	95	72%	6.7
Akcija	8483	3819	45%	0.00	3469	3101	89%	1.9
Aladin	779	78	10%	0.10	130	30	23%	8.5
Alchemy	153	32	21%	0.02	40	23	57%	7.9
Alea iacta est	45	16	36%	0.19	20	15	75%	6.6
Alehouse	330	118	36%	0.03	101	74	73%	6.1
Alex and Barb	650	223	34%	0.00	260	198	76%	3.4
Alice in the Digital World	5464	1363	25%	0.01	1233	978	79%	3.6
Alien Codebreaking	271	16	6%	3.23	45	13	29%	8.7
Alien Numbers	2671	1418	53%	0.00	1381	1266	92%	1.9
A List Game	9707	2901	30%	0.00	2774	2339	84%	3.0
All about that base	3035	1213	40%	0.00	1177	995	85%	2.9
All Different Directions	1555	697	45%	0.00	659	584	89%	2.6
Allergy Test	603	155	26%	0.00	191	96	50%	7.7
All Friends	1094	207	19%	0.00	188	101	54%	8.8
All is Well	91	28	31%	0.03	26	24	92%	4.6
All Just A Dream	2399	617	26%	0.05	464	360	78%	5.0
All Kill	59	46	78%	0.00	37	31	84%	4.7
Alloys	467	153	33%	0.00	167	137	82%	4.3
All Pairs Shortest Path	12018	2257	19%	0.00	1432	1029	72%	5.2
Almost Perfect	9818	2262	23%	0.00	2359	1883	80%	3.0
Almost Union-Find	8530	1490	17%	0.02	1384	813	59%	5.8
Alphabet	2086	1069	51%	0.00	1016	861	85%	3.1
Alphabet Animals	2932	885	30%	0.00	825	675	82%	3.1
Alphabet Spam	9439	5857	62%	0.00	4868	4679	96%	1.4
Alternating Current	636	621	98%	0.00	101	100	99%	1.3 - 7.8
Alternative Anagram	211	76	36%	0.00	61	50	82%	6.0
Alternative Bracket Notation	211	91	43%	0.00	97	81	84%	5.0
Altruistic Amphibians	487	128	26%	0.22	110	81	74%	5.4
Amalgamated Artichokes	4535	2040	45%	0.01	1794	1579	88%	2.6
Amanda Lounges	1604	477	30%	0.03	423	340	80%	5.4
A Mazing!	3520	892	25%	0.09	362	270	75%	5.5
Amazing Adventures	392	109	28%	0.02	123	89	72%	6.4
Amazing Race	394	99	25%	0.29	104	73	70%	7.4
Ambiguous Result	271	61	23%	0.02	92	58	63%	7.6
Amsterdam Distance	1843	878	48%	0.00	907	766	84%	2.7
A Multiplication Game	1052	429	41%	0.00	453	354	78%	4.2
Anagram Counting	4267	1683	39%	0.00	1627	1374	84%	2.7
Andrew the Ant	360	101	28%	0.05	110	85	77%	4.1
A New Adventure	1301	195	15%	0.00	203	143	70%	5.9
A New Alphabet	12396	5590	45%	0.00	5222	4820	92%	1.8
An I for an Eye	973	288	30%	0.00	323	247	76%	4.5
Animal Classification	1625	378	23%	0.03	323	216	67%	6.8
An Industrial Spy	1988	1088	55%	0.02	855	748	87%	2.9
Another Brick in the Wall	3701	1889	51%	0.00	1837	1679	91%	2.0
Another Candies	9066	2510	28%	0.00	2561	2138	83%	2.5
Another Coin Weighing Puzzle	456	134	29%	0.00	110	95	86%	4.6
Another Dice Game	113	74	65%	0.00	71	62	87%	4.3
Another Query on Array Problem	1813	228	13%	0.05	363	162	45%	7.8
Antenna Placement	172	72	42%	0.00	57	44	77%	6.8
Anthony and Cora	1035	279	27%	0.00	324	220	68%	5.6
Anthony and Diablo	3834	1403	37%	0.00	1405	1228	87%	2.5
Antiarithmetic?	1859	334	18%	0.01	416	235	56%	7.5
Ants	4287	1920	45%	0.00	1563	1368	88%	2.6
Apaxiaaaaaaaaaaaans!	15341	9156	60%	0.00	8163	7789	95%	1.5
Apostrophe Catastrophe	121	30	25%	0.00	33	21	64%	6.8